Abstract: The invention relates to an apparatus for fixing a slot angle (5) to the slot field (2) of a computer housing (1). According to the invention, the slot field (2) is adjusted to the geometry of the slot angle, which means that by closing a cover (9) of the computer housing (1) the slot angles (5) are automatically fixed by way of clamping action.

Abstract: An electromagnetic baffle arrangement includes a lid (22) having a trough or air gap (30) in the side walls of each cavity (23) of lid (22). Conductive strips (28) are applied to a layer of printed circuit board (26) and each of the legs (31) of lid (22). Optionally, to eliminate circulation of electromagnetic signals within air gap (30) a grounded bolt (32) may be inserted aperiodically.

Abstract: Apparatus and methods for reducing circuit board flexing is presented. The apparatus is fastened to a printed circuit board to provide rigid support for reducing bending and flexing. In one embodiment, a rigid frame is provided that is adapted to be fastened to one or more components and to be fastened to a printed circuit board. The frame is adapted to elevate the attached component from the PCB surface allowing components to be mounted on the PCB therewith. The frame is adapted to occupy minimal printed circuit board surface area so as not to displace electronic components. In another embodiment, an elongated truss-like stiffener is provided that is adapted to be fastened to one side of the printed circuit board and adapted to span the printed circuit board. The elongated stiffener is adapted to have an open structure to minimize cooling flow disturbance and weight. The elongated stiffener includes a plurality of legs forming a truss-like structure.

Abstract: An apparatus for protecting an electronic card is described. The apparatus has a protective contact. The protective contact has a contact face that, when the apparatus is in a locked protruding state, makes contact with a first incorrect card slot backplane feature. In the locked protruding state, the contact face extends outward a first distance from a feature of the card that can receive resultant damage if the card is fully inserted into the incorrect card slot. The first distance is greater than a second distance between a second incorrect card slot backplane feature that can cause the resultant damage and the first incorrect card slot backplane feature. The apparatus includes a guide along which the protective contact slides in order to transition between the locked protruding state and a collapsed state. The protective contact extends less outward from the card in the collapsed state as compared to the locked protruding state so as to allow the card to be fully inserted into a correct card slot.

Abstract: A communication device includes a sub-rack unit and a plurality of plug-in units. The sub-rack unit includes a back wiring board having first connectors arranged in lines thereon, and a frame plate including vertical ribs and placed on said back wiring board so that the vertical ribs separate the lines of the first connectors. Each of the plug-in units includes: a printed board including top and bottom sides and parallel first and second sides, the printed board having second connectors provided on the first side thereof; a metal case including top and bottom faces, and parallel first and second side faces so as to cover the printed board; and first and second spring members. Each of said plug-in units is mounted in the sub-rack unit with the first and second connectors being connected so that the first and second side faces of the metal case are pressed outward against the vertical ribs of the frame plate by resilient forces of the first and second spring members, respectively.

Abstract: A card connector assembly having a slot for inserting a card that has raised portions and a connector that receives the card that is inserted into the slot. An anti-dust shutter that pivots into an interior of the slot when the card is inserted. The anti-dust shutter having an interference avoiding means in the form of a cut-out or a projection that enables the card to be withdrawn from the slot without interference from the raised portions. The card connector assembly making it possible to withdraw cards having raised portions, such as PC cards that handle card busses, from the card connector assembly without interference with the anti-dust shutter.

Abstract: An assembly that permits the compact packaging of PCI cards within a low profile chassis of, for example, a server. The assembly includes a framework having a central portion along which a PCI riser card is mounted in a generally vertical orientation. A pair of PCI cards are coupled to the centrally located PCI riser card in a generally perpendicular and opposing orientation. A lever system also is connected to the framework to permit the entire assembly to be lowered into a relatively small footprint and then levered laterally for connection into the overall device.

Abstract: A power amplifier assembly combines a single printed circuit board with a housing for providing isolation between subcircuits of the circuit board. The printed circuit board is provided with four conductive layers and contains a power supply subcircuit, an upconverter subcircuit, a monitor and control subcircuit, a low power gain subcircuit, and a high power gain subcircuit. The printed circuit board is further provided with plated-through vias in an isolation path which, in conjunction with internal chassis lid walls, serves to increase electromagnetic and radio frequency isolation between subcircuits on the printed circuit board.

Abstract: An elongate gasket that can be placed on an electrical assembly in order to reduce electromagnetic interference, comprises (i) an elongate deformable strip (1) of electrically conductive material that has been folded along its length to form an arcuate cross-sectional profile; and (ii) an attachment arrangement (10, 12) to secure the gasket onto the component; At least one of the strip and the attachment arrangement is folded at an end region (30) thereof over the end of the other of the strip and the attachment arrangement in order to provide a smoothly varying longitudinal profile at the end of the gasket. This form of gasket allows components such as modules, to be inserted into recesses in an assembly by sliding along the gasket without damage to the gasket or causing it to be shifted.

Abstract: An electromagnetic radiation shield useful to attenuate or prevent the escape of electromagnetic radiation from the front of transceiver opto-electronic subassemblies resident in an opening or port in the housing of an electronic system is formed with both an aperture for each barrel of the opto-electronic subassemblies and a plurality of extensions projecting outwardly from the shield. The distal ends of the extensions are bent or shaped to form smoothly curved contact surfaces that project outside the transceiver module to make contact with a grounded member of the housing or other electrically grounded portion of the electronic system of which the transceiver module is a part. The electromagnetic radiation shield is assembled with the transceiver subassemblies and disposed within a transceiver module to be inserted into a communications port of a computer or server. The transceiver module contains elements that may generate and radiate electromagnetic energy.

Abstract: A housing for use in a vehicle to accommodate a printed circuit board (20, 22) carrying electronic components is provided. The housing has a generally parallelepipedal hood (10) made of plastics and having a plug collar (14) on one of its narrow side walls (12). A base plate closes off the hood (10). The printed circuit board (20) is mechanically and electrically conductively connected on three of the four corners of the hood (10) to a metallic mounting bushing (26). At each of these corners, the hood (10) has a mounting flange (16) and the mounting bushings (26) are anchored in the mounting flanges (16) of the hood (10).

Abstract: An expansion card retainer includes a computer chassis having a card slot formed in a wall of the chassis. A metal tab extends from the wall adjacent the slot. A pivotable bar is attached to the wall. A flexible tongue on the bar is positioned adjacent the card slot for engagement with a card inserted into the slot. A recess in the bar is provided for engagement with the metal tab. A latch is provided on the bar for securing the bar in engagement with the wall.

Abstract: A card receiving system and apparatus for retaining the edges of at least two electronic circuit component cards, in which the cards are preferably positioned horizontally so that one card is disposed above or over the other card and those two cards are oriented substantially parallel to each other. It is noted that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to ascertain quickly the subject matter of the technical disclosure. The abstract is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims pursuant to 37 C.F.R. §1.72(b).

Abstract: An ejector handle mounted to an electronic circuit card provides leverage to assist in engaging and disengaging the electronic circuit card from engagement with an electronic shelf. The ejector handle transmits light, such as by using light pipes, from an end of the handle adjacent to the faceplate of the electronic circuit card to a distal end of the handle where the transmitted light exits for viewing by maintenance personnel. A visual indicator assembly on the electronic circuit card supplies the sources of light that are coupled to and transmitted through the ejector handle. Indicia on the surface of the ejector handle identifies the corresponding function of the lights.

Abstract: A shielding cage assembly (10) for shielding a plurality of transceiver modules therein includes a conductive hanger (1), a conductive upper and lower shielding cages (21, 22) and a spacer (3). A plurality of dividing walls (23, 25), inside the upper and lower shielding cages cooperatively define a plurality of channels for receiving the transceiver modules therein. The spacer is sandwiched between the stacked upper and lower shielding cages.

Abstract: A method and apparatus for mounting a plurality of circuit card guides on a circuit card cage. The cage has two pairs of end fingers at each end of a mounting surface, and an arch proximate the center thereof. Each card guide has end tabs and a central medial tab having a lateral edge. One set of end fingers is engaged with one of the set of end tabs and the card guide is flexed in the plane thereof to shorten the distance between the ends of the end tabs and fit the other pair of end tabs under the other pair of end fingers. Unflexing the guide fit the tabs under the end fingers. The card is flexed transverse to the plane thereof so the edge of the tab is beyond the arch allowing the guide to unflex so that the tab is moved under the arch.

Abstract: An anchoring apparatus for computer drives without using screws includes an anchor plate coupling on two struts located on an installation rack of the drives. The anchor plate pivotally and respectively engages with an actuating member on the left side and the right side through stub shafts. The anchor plate has anchor stubs corresponding to anchor holes of the installation rack. Each strut is coupled with a returning spring. The actuating member has a driving lever on an outer side and an inner side extended to form a driven end. The driving lever may be moved to a returning position thereby to replace and install the drive without disassembling screws.

Abstract: A fastening module (1) for a printed circuit board (10) of a portable electronic device includes the printed circuit board and a casing (20). The casing includes at least one supporting plate (23, 25) and at least one clamp (22). The supporting plate and the clamp engage with the printed circuit board, thus fixing the printed circuit board in the casing.

Abstract: The invention is related to a fixture device for motherboard module by placing two fixing plates on the locational surface of a major control device. A Π-shaped slide way with the same width as the motherboard module is formed on the base plate below the fixing plate. Additionally, a locating button in front of the opening of the slide way is used to secure the motherboard module into the slide way. Through this approach, the motherboard module can be easily installed/disassembled by pressing the locating button without using any tools or test fixtures.

Abstract: Disclosed herein is an electronic device including a cabinet and a shelf accommodated in the cabinet. The shelf has a floating mechanism and a plurality of guide rails for guiding a plurality of printed circuit board units. The floating mechanism includes a plurality of holes formed through the shelf, each of the holes having a first diameter; a plurality of tapped holes formed through the cabinet so as to respectively correspond to the holes of the shelf; and a plurality of screws inserted through the holes of the shelf and threadedly engaged with the tapped holes of the cabinet, respectively, each of the screws having a second diameter smaller than the first diameter. The cabinet has a plurality of first guide pins, and the shelf has a plurality of second guide pins each having a diameter smaller than that of each first guide pin.